A spoolholder that would probably fit most of your needs.
I`ll upload instructional videos here: https://youtu.be/JyBSdGyvnAY
6 perimeter, 6 top and 6 bottom. 15% infill.
I have uploaded both 3mf of the bed and gcodes. The gcodes are from my prusa MK3s setup and should work good since I have adjusted down speed and accelleration.
No special gcodes at the beginning and end other then 100% flow all the time.
The author hasn't provided the model origin yet.